2 hrs 35 min
Blend cottage cheese, butter and egg in medium bowl.
Add brownie mix and nuts; stir until blended.
Refrigerate for 2 hours or overnight.
Form into 1-inch balls (a small ice cream scoop works well). Roll balls in powdered sugar and place on greased cookie sheed.
Bake at 350°F 12 to 15 minutes or until set.